US6163399A - Method and apparatus for suppressing transients in optical amplifiers - Google Patents
Method and apparatus for suppressing transients in optical amplifiers Download PDFInfo
- Publication number
- US6163399A US6163399A US09/207,028 US20702898A US6163399A US 6163399 A US6163399 A US 6163399A US 20702898 A US20702898 A US 20702898A US 6163399 A US6163399 A US 6163399A
- Authority
- US
- United States
- Prior art keywords
- output
- input
- power
- gain
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/29—Repeaters
- H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
- H04B10/293—Signal power control
- H04B10/294—Signal power control in a multiwavelength system, e.g. gain equalisation
- H04B10/296—Transient power control, e.g. due to channel add/drop or rapid fluctuations in the input power
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06754—Fibre amplifiers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
- H01S3/1301—Stabilisation of laser output parameters, e.g. frequency or amplitude in optical amplifiers
- H01S3/13013—Stabilisation of laser output parameters, e.g. frequency or amplitude in optical amplifiers by controlling the optical pumping
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
- H01S3/10015—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by monitoring or controlling, e.g. attenuating, the input signal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
- H01S3/1305—Feedback control systems
Definitions
- filters 206,226 attenuate the spectral region below about 10 kHz.
- the filter 206 has a dual functionality, one of which is to enhance the signal in a given frequency band of interest.
- the 10-120 kHz band is very useful, since the power level of each individual information channel is related to the power of an analog dither signal deliberately placed in the 10-120 kHz band.
Abstract
Description
Claims (31)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/207,028 US6163399A (en) | 1998-12-08 | 1998-12-08 | Method and apparatus for suppressing transients in optical amplifiers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/207,028 US6163399A (en) | 1998-12-08 | 1998-12-08 | Method and apparatus for suppressing transients in optical amplifiers |
Publications (1)
Publication Number | Publication Date |
---|---|
US6163399A true US6163399A (en) | 2000-12-19 |
Family
ID=22768915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/207,028 Expired - Fee Related US6163399A (en) | 1998-12-08 | 1998-12-08 | Method and apparatus for suppressing transients in optical amplifiers |
Country Status (1)
Country | Link |
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US (1) | US6163399A (en) |
Cited By (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001082516A1 (en) * | 2000-04-24 | 2001-11-01 | Lucent Technologies Inc. | Gain equalization in dwdm networks |
US6341034B1 (en) | 2000-10-18 | 2002-01-22 | Onetta Inc. | Optical amplifier system with transient control using spectrally filtered input |
US6356386B1 (en) * | 2000-02-29 | 2002-03-12 | Lucent Technologies Inc. | Method and apparatus for stabilizing transient control in amplified optical networks |
US6396879B1 (en) * | 1999-03-01 | 2002-05-28 | Mitsubishi Denki Kabushiki Kaisha | Transmission power controller and transmission power control method |
US6414788B1 (en) | 2000-10-02 | 2002-07-02 | Onetta, Inc. | Optical amplifier system with transient control |
US6441950B1 (en) | 2000-11-03 | 2002-08-27 | Onetta, Inc. | Distributed raman amplifier systems with transient control |
US6449085B1 (en) * | 1997-12-10 | 2002-09-10 | Nec Corporation | Optical direct amplifier and control method thereof |
US6452722B1 (en) * | 1998-08-26 | 2002-09-17 | Siemens Aktiengesellschaft | Optical amplifier with automatic level control and automatic gain control |
US6476961B1 (en) | 2001-04-26 | 2002-11-05 | Onetta, Inc. | Optical amplifier systems with transient control |
WO2002091027A2 (en) * | 2001-05-09 | 2002-11-14 | Ciena Corporation | Method and system for controlling amplifier power in an optical communications network having add/drop capability |
US20020171917A1 (en) * | 2001-05-17 | 2002-11-21 | Lelic Muhidin A. | Optical amplifier performance controller and method of use |
US6498677B1 (en) | 2000-10-23 | 2002-12-24 | Onetta, Inc. | Optical amplifier systems with transient control |
EP1283567A2 (en) * | 2001-07-10 | 2003-02-12 | Samsung Electronics Co., Ltd. | Automatic gain control device of optical fiber amplifier |
US6542287B1 (en) | 2000-12-12 | 2003-04-01 | Onetta, Inc. | Optical amplifier systems with transient control |
US6600596B2 (en) * | 2001-05-09 | 2003-07-29 | Ciena Corporation | Method and system for controlling amplifier power in an optical communications network having add/drop capability |
US6614589B2 (en) * | 2001-05-09 | 2003-09-02 | Ciena Corporation | Method and system for controlling amplifier power in an optical communications network |
US20030198474A1 (en) * | 2002-04-18 | 2003-10-23 | Greg Mooney | Systems and methods for compensating for signal transients |
WO2004002025A1 (en) * | 2002-06-20 | 2003-12-31 | Eci Telecom Ltd. | Method and system for power control of optical transmission span |
US20040019459A1 (en) * | 2002-07-29 | 2004-01-29 | Paul Dietz | Auto-characterization of optical devices |
US6690505B1 (en) | 2001-09-28 | 2004-02-10 | Onetta, Inc. | Optical network equipment with gain transient control and automatic drift compensation |
US6690506B2 (en) | 2001-05-17 | 2004-02-10 | Corning Incorporated | Control architecture and method for optical amplifiers |
US6798567B2 (en) | 2002-03-07 | 2004-09-28 | Lucent Technologies Inc. | Method and apparatus for controlling power transients in an optical communication system |
WO2005057813A1 (en) * | 2003-12-15 | 2005-06-23 | Siemens Aktiengesellschaft | Method for regulating the pump power of an optical amplifier |
US20050213990A1 (en) * | 2004-03-24 | 2005-09-29 | Fujitsu Limited | Gain monitoring method for optical amplifier and apparatus thereof |
EP1394970A3 (en) * | 2002-08-30 | 2006-01-11 | Sumitomo Electric Industries, Ltd. | Optical amplifier, gain control method and circuit for an optical amplifier |
CN1318909C (en) * | 2002-08-30 | 2007-05-30 | 住友电气工业株式会社 | Light amplifier, gain-control method for light amplifier and electric circuit |
US7269347B1 (en) | 2003-05-28 | 2007-09-11 | Ciena Corporation | Optical receiver decision threshold tuning apparatus and method |
US20080273876A1 (en) * | 2003-05-29 | 2008-11-06 | Paul Lundquist | Transient optical power suppressing apparatus, method, and network |
US20090059354A1 (en) * | 2007-08-29 | 2009-03-05 | Daniel Kilper | Optical amplifier transient control with gain error limits |
WO2011026502A1 (en) * | 2009-09-04 | 2011-03-10 | Nokia Siemens Networks Oy | Optical fiber amplifier compromising an embedded filter and a control method with improved feedforward control performance |
US8134776B1 (en) | 2008-06-04 | 2012-03-13 | Oplink Communications, Inc. | Optical amplifier output control based on change in detected input power |
WO2012105992A1 (en) * | 2011-01-31 | 2012-08-09 | Ipg Photonics Corporation | Methods and apparatus for differentially controlling population inversion in gain medium |
US20140056320A1 (en) * | 2011-01-31 | 2014-02-27 | Ipg Photonics Corporation | Method and Apparatus for Differentially Controlling Population Inversion in Gain Medium |
US20150124313A1 (en) * | 2013-11-05 | 2015-05-07 | Fujitsu Optical Components Limited | Optical communication apparatus and control method of optical communication apparatus |
US9509113B2 (en) * | 2014-06-17 | 2016-11-29 | Fujitsu Limited | Transient gain cancellation for optical amplifiers |
US20190074924A1 (en) * | 2011-09-02 | 2019-03-07 | Ciena Corporation | Cross-polarized control channels for loading fiber optic transport systems |
US11196504B1 (en) | 2020-10-28 | 2021-12-07 | Ciena Corporation | Extending the optical spectrum of an optical network |
US11553259B2 (en) | 2020-10-28 | 2023-01-10 | Ciena Corporation | Extending the optical spectrum of an optical network |
US11770193B2 (en) | 2021-07-28 | 2023-09-26 | Ciena Corporation | Mitigating instability in cascaded optical power controllers |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5703711A (en) * | 1995-06-09 | 1997-12-30 | Nec Corporation | In-line optical amplifier |
US5923462A (en) * | 1997-03-28 | 1999-07-13 | Lucent Technologies Inc. | Dynamic gain control system for optical amplifier and method thereof |
US6008935A (en) * | 1996-12-10 | 1999-12-28 | Nec Corporation | Optical amplifier and optical amplifier gain control method and apparatus |
US6025947A (en) * | 1996-05-02 | 2000-02-15 | Fujitsu Limited | Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied |
US6038063A (en) * | 1997-10-16 | 2000-03-14 | Fujitsu Limited | Optical amplifier and optical transmission system including the optical amplifier |
-
1998
- 1998-12-08 US US09/207,028 patent/US6163399A/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5703711A (en) * | 1995-06-09 | 1997-12-30 | Nec Corporation | In-line optical amplifier |
US6025947A (en) * | 1996-05-02 | 2000-02-15 | Fujitsu Limited | Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied |
US6008935A (en) * | 1996-12-10 | 1999-12-28 | Nec Corporation | Optical amplifier and optical amplifier gain control method and apparatus |
US5923462A (en) * | 1997-03-28 | 1999-07-13 | Lucent Technologies Inc. | Dynamic gain control system for optical amplifier and method thereof |
US6038063A (en) * | 1997-10-16 | 2000-03-14 | Fujitsu Limited | Optical amplifier and optical transmission system including the optical amplifier |
Cited By (64)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6449085B1 (en) * | 1997-12-10 | 2002-09-10 | Nec Corporation | Optical direct amplifier and control method thereof |
US6452722B1 (en) * | 1998-08-26 | 2002-09-17 | Siemens Aktiengesellschaft | Optical amplifier with automatic level control and automatic gain control |
US6396879B1 (en) * | 1999-03-01 | 2002-05-28 | Mitsubishi Denki Kabushiki Kaisha | Transmission power controller and transmission power control method |
US6356386B1 (en) * | 2000-02-29 | 2002-03-12 | Lucent Technologies Inc. | Method and apparatus for stabilizing transient control in amplified optical networks |
US6944401B2 (en) | 2000-04-24 | 2005-09-13 | Lucent Technologies Inc. | Gain equalization in DWDM networks |
US20030223747A1 (en) * | 2000-04-24 | 2003-12-04 | Albert Olier | Gain equalization in dwdm networks |
WO2001082516A1 (en) * | 2000-04-24 | 2001-11-01 | Lucent Technologies Inc. | Gain equalization in dwdm networks |
US6414788B1 (en) | 2000-10-02 | 2002-07-02 | Onetta, Inc. | Optical amplifier system with transient control |
US6341034B1 (en) | 2000-10-18 | 2002-01-22 | Onetta Inc. | Optical amplifier system with transient control using spectrally filtered input |
US6498677B1 (en) | 2000-10-23 | 2002-12-24 | Onetta, Inc. | Optical amplifier systems with transient control |
US6441950B1 (en) | 2000-11-03 | 2002-08-27 | Onetta, Inc. | Distributed raman amplifier systems with transient control |
US6542287B1 (en) | 2000-12-12 | 2003-04-01 | Onetta, Inc. | Optical amplifier systems with transient control |
US6476961B1 (en) | 2001-04-26 | 2002-11-05 | Onetta, Inc. | Optical amplifier systems with transient control |
US6600596B2 (en) * | 2001-05-09 | 2003-07-29 | Ciena Corporation | Method and system for controlling amplifier power in an optical communications network having add/drop capability |
US7081986B2 (en) | 2001-05-09 | 2006-07-25 | Ciena Corporation | Method and system for controlling amplifier power in an optical communications network having add/drop capability |
US20030151803A1 (en) * | 2001-05-09 | 2003-08-14 | Degrange James E. | Method and system for controlling amplifier power in an optical communications network having add/drop capability |
US6614589B2 (en) * | 2001-05-09 | 2003-09-02 | Ciena Corporation | Method and system for controlling amplifier power in an optical communications network |
WO2002091027A2 (en) * | 2001-05-09 | 2002-11-14 | Ciena Corporation | Method and system for controlling amplifier power in an optical communications network having add/drop capability |
WO2002091027A3 (en) * | 2001-05-09 | 2009-06-11 | Ciena Corp | Method and system for controlling amplifier power in an optical communications network having add/drop capability |
US20020171917A1 (en) * | 2001-05-17 | 2002-11-21 | Lelic Muhidin A. | Optical amplifier performance controller and method of use |
US6943937B2 (en) | 2001-05-17 | 2005-09-13 | Avanex Corporation | Optical amplifier performance controller and method of use |
US6690506B2 (en) | 2001-05-17 | 2004-02-10 | Corning Incorporated | Control architecture and method for optical amplifiers |
EP1283567A3 (en) * | 2001-07-10 | 2003-12-17 | Samsung Electronics Co., Ltd. | Automatic gain control device of optical fiber amplifier |
EP1283567A2 (en) * | 2001-07-10 | 2003-02-12 | Samsung Electronics Co., Ltd. | Automatic gain control device of optical fiber amplifier |
US6690505B1 (en) | 2001-09-28 | 2004-02-10 | Onetta, Inc. | Optical network equipment with gain transient control and automatic drift compensation |
US6798567B2 (en) | 2002-03-07 | 2004-09-28 | Lucent Technologies Inc. | Method and apparatus for controlling power transients in an optical communication system |
US20040218258A1 (en) * | 2002-03-07 | 2004-11-04 | Feldman Robert D | Method and apparatus for controlling power transients in an optical communication system |
US7161734B2 (en) | 2002-03-07 | 2007-01-09 | Lucent Technologies Inc. | Method and apparatus for controlling power transients in an optical communication system |
US7062169B2 (en) | 2002-04-18 | 2006-06-13 | Dorsal Networks, Inc. | Systems and methods for compensating for signal transients |
US20030198474A1 (en) * | 2002-04-18 | 2003-10-23 | Greg Mooney | Systems and methods for compensating for signal transients |
US7046429B2 (en) | 2002-06-20 | 2006-05-16 | Eci Telecom Ltd. | Method and system for span optical power control |
US20040037564A1 (en) * | 2002-06-20 | 2004-02-26 | Eci Telecom Ltd. | Method and system for span optical power control |
WO2004002025A1 (en) * | 2002-06-20 | 2003-12-31 | Eci Telecom Ltd. | Method and system for power control of optical transmission span |
US20040019459A1 (en) * | 2002-07-29 | 2004-01-29 | Paul Dietz | Auto-characterization of optical devices |
EP1394970A3 (en) * | 2002-08-30 | 2006-01-11 | Sumitomo Electric Industries, Ltd. | Optical amplifier, gain control method and circuit for an optical amplifier |
CN1318909C (en) * | 2002-08-30 | 2007-05-30 | 住友电气工业株式会社 | Light amplifier, gain-control method for light amplifier and electric circuit |
US7269347B1 (en) | 2003-05-28 | 2007-09-11 | Ciena Corporation | Optical receiver decision threshold tuning apparatus and method |
US7483205B1 (en) | 2003-05-29 | 2009-01-27 | Ciena Corporation | Transient optical power suppressing apparatus, method, and network |
US20090303576A1 (en) * | 2003-05-29 | 2009-12-10 | Paul Lundquist | Transient optical power suppressing apparatus, method, and network |
US7589889B2 (en) | 2003-05-29 | 2009-09-15 | Ciena Corporation | Transient optical power suppressing apparatus, method, and network |
US20080273876A1 (en) * | 2003-05-29 | 2008-11-06 | Paul Lundquist | Transient optical power suppressing apparatus, method, and network |
US7791792B2 (en) | 2003-05-29 | 2010-09-07 | Ciena Corporation | Transient optical power suppressing apparatus, method, and network |
CN1918830B (en) * | 2003-12-15 | 2011-10-19 | 诺基亚西门子通信有限责任两合公司 | Method for regulating the pump power of an optical amplifier |
US7453627B2 (en) | 2003-12-15 | 2008-11-18 | Siemens Aktiengesellschaft | Method for controlling the pump power of an optical amplifier |
US20070103767A1 (en) * | 2003-12-15 | 2007-05-10 | Siemens Aktiengesellschaft | Method for controlling the pump power of an optical amplifier |
WO2005057813A1 (en) * | 2003-12-15 | 2005-06-23 | Siemens Aktiengesellschaft | Method for regulating the pump power of an optical amplifier |
US7308208B2 (en) * | 2004-03-24 | 2007-12-11 | Fujitsu Limited | Gain monitoring method for optical amplifier and apparatus thereof |
US20050213990A1 (en) * | 2004-03-24 | 2005-09-29 | Fujitsu Limited | Gain monitoring method for optical amplifier and apparatus thereof |
US7746548B2 (en) * | 2007-08-29 | 2010-06-29 | Alcatel-Lucent Usa Inc. | Optical amplifier transient control with gain error limits |
US20090059354A1 (en) * | 2007-08-29 | 2009-03-05 | Daniel Kilper | Optical amplifier transient control with gain error limits |
US8134776B1 (en) | 2008-06-04 | 2012-03-13 | Oplink Communications, Inc. | Optical amplifier output control based on change in detected input power |
US8520300B1 (en) | 2008-06-04 | 2013-08-27 | Oplink Communications, Inc. | Optical amplifier and control method for constant output power |
US8908265B2 (en) | 2009-09-04 | 2014-12-09 | Xieon Networks S.A.R.L. | Optical fiber amplifier comprising an embedded filter and a control method with improved feedforward control performance |
WO2011026502A1 (en) * | 2009-09-04 | 2011-03-10 | Nokia Siemens Networks Oy | Optical fiber amplifier compromising an embedded filter and a control method with improved feedforward control performance |
WO2012105992A1 (en) * | 2011-01-31 | 2012-08-09 | Ipg Photonics Corporation | Methods and apparatus for differentially controlling population inversion in gain medium |
US20140056320A1 (en) * | 2011-01-31 | 2014-02-27 | Ipg Photonics Corporation | Method and Apparatus for Differentially Controlling Population Inversion in Gain Medium |
US8953652B2 (en) * | 2011-01-31 | 2015-02-10 | Ipg Photonics Corporation | Method and apparatus for differentially controlling population inversion in gain medium |
US20190074924A1 (en) * | 2011-09-02 | 2019-03-07 | Ciena Corporation | Cross-polarized control channels for loading fiber optic transport systems |
US11463189B2 (en) * | 2011-09-02 | 2022-10-04 | Ciena Corporation | Cross-polarized control channels for loading fiber optic transport systems |
US20150124313A1 (en) * | 2013-11-05 | 2015-05-07 | Fujitsu Optical Components Limited | Optical communication apparatus and control method of optical communication apparatus |
US9509113B2 (en) * | 2014-06-17 | 2016-11-29 | Fujitsu Limited | Transient gain cancellation for optical amplifiers |
US11196504B1 (en) | 2020-10-28 | 2021-12-07 | Ciena Corporation | Extending the optical spectrum of an optical network |
US11553259B2 (en) | 2020-10-28 | 2023-01-10 | Ciena Corporation | Extending the optical spectrum of an optical network |
US11770193B2 (en) | 2021-07-28 | 2023-09-26 | Ciena Corporation | Mitigating instability in cascaded optical power controllers |
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Owner name: NORTHERN TELECOM LIMITED, CANADA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BERG, LOREN SCOTT;REEL/FRAME:009663/0925 Effective date: 19981203 |
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Effective date: 20081219 |